
Surf Forecasts:
Kohala Lighthouse surf forecast from 9 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 11ft (3.5m), 9s period, ENE swell with 1,767 kJ wave energy.
Best Forecast Surf Conditions for Kohala Lighthouse this week:
The most powerful waves expected at Kohala Lighthouse in the next 16 days are 3.5m 9s and forecast to arrive on Saturday (Aug 15) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 18s period and expected on Saturday (Aug 08) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sat 15th Aug) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Kohala Lighthouse over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get right into it for the Kohala Lighthouse area. It’s a tricky outlook, I’ll be honest. This is a spot that needs a clean window, and for most of this run, the wind is just not playing ball.
Right out of the gate, from Saturday the 8th, we’ve got a fresh cross-shore wind blowing at about 22 mph, and the surf is sitting around 5 ft of short-period ENE windswell. That’s weak and lumpy. This pattern just locks in day after day. Sunday the 9th, Monday the 10th, Tuesday the 11th – it’s the same story. The swell size pushes up to 7 ft by Sunday afternoon, but that consistent 19 mph cross-breeze is just killing any chance of it cleaning up. The water temperature here is about 80°, which is average for this time of year.
This messy, cross-shore blast carries right through Wednesday, Thursday, and into Friday the 14th. By Friday afternoon, we’re seeing the swell jump to 8 ft from the ENE with a bit more period, and the energy is building. But the wind goes cross-onshore at 22 mph, so it’s lumpy and choppy. Honestly, this whole first week is a write-off for a decent paddle session. If you’ve got a kite, you might find some fun in that strong cross-onshore wind on Saturday the 15th, with swell hitting 12 ft, but for a surfboard? Nah.
Then, we finally get a window. Sunday the 16th is the standout. A moderate offshore SSW wind blows at 16 mph, and it cleans everything right up. The swell is still a solid 10 ft to 12 ft from the ENE, so this is not for beginners – this is big, powerful stuff for experienced surfers only. The period is short, so it’s not a classic groundswell, but with that offshore wind grooming the faces, it’s going to be a heavy, hollow day. That’s your only shot.
After that tease, it’s back to the grind. From Monday the 17th onward, the cross-shore wind returns. Swell hangs around 6 ft to 7 ft for the rest of the week. A few days around the 21st and 22nd show a slight drop in wind speed to 12-16 mph, which is an improvement, but still far from clean. The swell direction is straight east or east-northeast, and with that constant cross-breeze, it’s going to be frustrating. There are no other standouts in this window. It’s a long stretch of bumpy, onshore slop.
So, to put it plainly: if you’re an experienced surfer, mark your calendar for Sunday the 16th. That’s the only day with offshore wind and serious size. For everyone else, it’s a lot of waiting and watching the wind.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 27°C on Sun afternoon, min 25°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu afternoon, min 25°C on Tue night). Mainly strong winds. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 9 | ENE 9 |
Wave Graph | ||||||||||||||||||||
244 | 284 | 438 | 498 | 394 | 408 | 376 | 266 | 268 | 294 | 199 | 193 | 200 | 198 | 262 | 303 | 427 | 653 | 878 | 993 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 11:33PM0.34m | 1:35PM0.93m | 00:49AM0.38m | 2:15PM0.97m | 1:44AM0.43m | 2:52PM0.98m | 2:33AM0.48m | 3:26PM0.95m | 3:19AM0.53m | 3:57PM0.90m | 4:05AM0.58m | 4:24PM0.83m | 4:51AM0.61m | |||||||
Low Tide | 8:38PM0.31m | 5:40AM0.06m | 8:54PM0.27m | 6:40AM0.03m | 9:17PM0.23m | 7:32AM0.01m | 9:42PM0.21m | 8:20AM0.02m | 10:08PM0.18m | 9:04AM0.07m | 10:33PM0.17m | 9:48AM0.13m | 10:57PM0.15m | |||||||
— | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 |
Temp °C | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 26 |
Feels °C | 24 | 24 | 25 | 27 | 25 | 26 | 26 | 25 | 24 | 24 | 22 | 24 | 23 | 24 | 24 | 24 | 23 | 23 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | N 6 | NE 9 | W 13 | W 12 | NNW 10 | NNW 10 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | W 11 | W 11 | W 13 | W 12 | W 12 | W 12 | E 14 | W 11 | W 12 | W 12 |
3 | 30 | 13 | 11 | 21 | 19 | 16 | 14 | 6 | 6 | 23 | 9 | 13 | 11 | 11 | 11 | 16 | 10 | 11 | 11 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | N 6 | SW 16 | N 12 | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | NNW 7 | W 13 | SW 12 | SW 12 | SW 12 | S 12 | W 12 | S 14 | N 8 | N 10 |
12 | 3 | 10 | 11 | 22 | 20 | 20 | 8 | 8 | 8 | 5 | 13 | 6 | 6 | 5 | 3 | 11 | 4 | 1 | 2 | |
Swell 3 Height (m) Direction Period (s) | W 10 | SW 17 | N 6 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | N 7 | N 7 | S 16 | N 9 | N 8 | — | SW 17 | SW 17 |
2 | 12 | 1 | 10 | 10 | 10 | 9 | 8 | 8 | 8 | 7 | 6 | 1 | 1 | 5 | 2 | 1 | — | 12 | 12 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 9 | ENE 9 |
244 | 284 | 438 | 498 | 394 | 408 | 376 | 266 | 268 | 294 | 199 | 193 | 200 | 198 | 262 | 303 | 427 | 653 | 878 | 993 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 69 | 57 | 73 | 73 | 69 | 73 | 76 | 69 | 76 | 57 | 73 | 69 | 73 | 71 | 73 | 69 | 57 | 69 | 69 | 69 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Kohala Lighthouse Surf forecast
The above surf forecast table for Kohala Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kohala Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Kohala Lighthouse surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kohala Lighthouse) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kohala Lighthouse may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kohala Lighthouse is 87 km (54 miles) from Kihei. If you plan a vacation in Big Island, look for hotels and other accommodation in Kihei. Kihei has rooms for a wide range of budgets as well as car hire and transport links.











